/**
 * Copyright (c) 2011 Roundarch (www.roundarch.com)
 *
 * Author Joshua Jung
 *
 * ---
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.roundarch.flex.controls.graphControlConstraints
{

    /**
     *
     * @author jjung
     */
    public class ConstraintFunctions
    {

        public static function get equals() : IPointConstraintFunction
        {
            return new EQUALS();
        }

        public static function get gte() : IPointConstraintFunction
        {
            return new GTE();
        }

        public static function get lte() : IPointConstraintFunction
        {
            return new LTE();
        }
    }
}

import com.roundarch.flex.controls.graphControlConstraints.IPointConstraintFunction;
import flash.geom.Point;

class LTE implements IPointConstraintFunction
{
    public function constrain(val1 : Point, val2 : Point) : Point
    {
        var newPoint : Point=new Point(0, 0);

        newPoint.x=val1.x <= val2.x ? val1.x : val2.x;
        newPoint.y=val1.y <= val2.y ? val1.y : val2.y;

        return newPoint;
    }
}

class GTE implements IPointConstraintFunction
{
    public function constrain(val1 : Point, val2 : Point) : Point
    {
        var newPoint : Point=new Point(0, 0);

        newPoint.x=val1.x >= val2.x ? val1.x : val2.x;
        newPoint.y=val1.y >= val2.y ? val1.y : val2.y;

        return newPoint;
    }
}

class EQUALS implements IPointConstraintFunction
{
    public function constrain(val1 : Point, val2 : Point) : Point
    {
        return val2;
    }
}
